7078386: NetworkInterface.getNetworkInterfaces() may return corrupted results on linux

Reviewed-by: michaelm, alanb, chegar
Contributed-by: brandon.passanisi@oracle.com

src/solaris/native/java/net/NetworkInterface.c

@@ -1109,7 +1109,7 @@ static netif *enumIPv6Interfaces(JNIEnv *env, int sock, netif *ifs) {
     uint8_t ipv6addr[16];
 
     if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
-        while (fscanf(f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
+        while (fscanf(f, "%4s%4s%4s%4s%4s%4s%4s%4s %08x %02x %02x %02x %20s\n",
                          addr6p[0], addr6p[1], addr6p[2], addr6p[3], addr6p[4], addr6p[5], addr6p[6], addr6p[7],
                          &if_idx, &plen, &scope, &dad_status, devname) != EOF) {